Coating-machine.



F. E. GOLDSMITH. COATING MAGHINE,

' APPLIOATION IILED APB.3,1905. 926,059. Patented June 22,1909.

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Witnesses: Inventor mam EH;

Attorney F. E. GOLDSMITH.

I COATING MACHINE.

APPLICATION TILED APR.3,1905.

Patented June 22, 1909.

3 SHEETS-SHEET 2.

Witnesses: Inventor Attorney F. E. GOLDSMITH.

COATING MACHINE.

APPLICATION 311.21) APR.3.1905.

926,059. Patented June 22,1909.

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. Witnesses: Inventor UNITED S'ftltitlflti1?;it7lflihtft? oainicit.

FREDERICK i lNSl GOLDSMITH, ()l Mlltllhli'ltHYX, ()lllt), ANSIUNOR "lO'Jll'll'l CERAMIC MACHINERY COMPANY, ()l llr\.\llli'l(n\', ()lllO.

COATING-MACHINE.

No. 926,059, Specification of Letters Patent. Patented June 22, 1909.

I Application filed April 3, 1905. Serial No. 258,720.

T all whom it may (ORCHVZJ l coated objects of a specified coatingarede- 1 Be it: known that I, l aanianoit. lilnns'r sire(l.-

'Goiiosnrrn, a citizen of the United States, i A characteristic featureof the process and a. resident. of Middletown, in the county may beillustrated by the diagrammatic of Butler and State of Ohio, haveinvented I l igurc 1, illustrating in sectional elevation certain newand useful improvements in the carrier 1, the impression zone 2, the ob-(loating-h'lachincs, of which the following i ject to be coated 3, theincoming conveyor is a complete specification. i, the outgoing conveyor.3, the supporting My invention relates to the application of abutment6, the guiding, feeding, or coma fluid or plastic coatingto the surfacesof pressiou means 7, and the controlling means objects, such as tile andthelike. I 8. To the above elements may be added a ."lhe inventionconsists in the herein desource of supply 1), for tho tluid coating,scribed method of applying; such fluid or moving means to for agitatingthe same, plastic, the details of which will be first transmitting means11, as a rotary roll, for

fully described, and the characteristic. fca carrying the coating to thecarrier, a dam lures thereof will be ilormulated in the 12 for forming apool of coating in proxclaims which follow. imit to the carrier.adjusting means l-J for For purposes of detiniteness the surtace Yur innthe controlling means b, and adjust which receives the tluid coating iscalled the ing means ll for Varying the. compression 2O carrier. Thatpart. of the carrier which transfers the coating to the object to be Itcrizcdln' a sullicient l 'idil to enable. it. coated is the impressionzone. The tiuid to bear uniformly along the length of the or plasticcmnpositimi to be applied is the supporting abutment t.

"coating? The material. object, tile or the To enable one to casil)perceive the like, to be coated ('lenominated the on broader view ol thepresent invention it is ject". The means for bringing the object Idesirable to clearly understand at least one and carrier together is theincoming con specific manner ol' carttins: will the pr c \'cyci" whilethe. nicans lorseparating them i lcei'ipihg in mind however that thisspecific is called the outgoing conveyor. llv/ description is nottmumensuratc nith the "supporting abutment is meant the sup- 'enericmethod, being but a single one of port for the carrier in theneighborhood of many manil'estatious ihcreol. in a tank 5) theimpression zone. The coating in the is placed a quautit ot' thud coating15. .t tluid state is supplied to an absorptive. per I suitablyjourualcd rotary drum i1 is adapted \ious carrier which is saturatedtherewith. to dip into the coating and carry it on its The coating takenfrom the carrier by l pcripl'u'r) lo the carrier 1. 'lhc carrier iscontact of the object therewith, 'lhe. supply adapted to rotate in closeproximity to thc oi coating may be aided by some degree or" t drum itbut prel'erahl out ol' contact therev compression causing; a tlow otcoating to the l with. rotary dam is located upon the 'in'ipressionzone. 'lhis compression ma be I drum to the rear o." the carrier contactto -10 governed by the object as it lccciYcs its coat. 5 dam up a poolol' coating in contact with The supply of coating may be well conithacarricr. vThe rotary carrier It is a hollow trolled by means tendingto bring the carj shell or sleeve ol absorptive elastic pervious riertoward a supporting abutment in admaterial. which may be positivelydriven, or Vance oi the impression zone for the puri which may partakeof the motion of the pose. of securing an even and adcuuate (702throtary supporting abutment (.3 mounted in ingl' upon the surlace ot' thecarrier. Means I suitable. bearings. 'lhc carrier 1 may be are alsoemployed to withdraw the body oi l moved or adjusted laterally bybringing one the coating irom the surface of the carrier l or more rolls8 to bear thin-eon, so that a as the ol jccl is bcingor about to be.sepa portion ot the carrier in advance oi the imrated from the carrier,for the purpose otl prerenting an undue deposit at coating, upon the.olu'cet at any point, .iyhere evenly i rotary abutment. with sullicicntcoin n'ession to cause a flow of coating to the surface of means T. Thecarrier is: nret'crabl charac pression zone 2 may be brought against thethe carrier. After the coated/object 3 leaves the impression zone 2 thesurface flow of coating on the carrier 1 sinksinto the body thereof, dueto itsrelease from or passage beyond the bearing 8, or to the tendencyto create a vacuum between the carrier and the supporting abutment 6 asthey separate. The incoming conveyer is an endless belt 4 carried uponrolls. The outgoingconveyer 5 is similar in construction to conveyer 4,but the whole conveyer-5 is adjustable longitudi nally whereby itsreceiving end may be set at varied distances from the carrier 1. Thisadjustability permits the object coated (depending upon its length) tostrike such an angle with respect to the carrier that no excess or ridgeof coating is left upon the rear of the object as it leaves the carrier,a condition likely to result unless special provision is made to preventthe same. An elastic guiding or feeding roll 7 is adjustable verticallyfor difierent sized objects 3, and may, if desired, effect some degreeof compression, as theypass through the impression zone.

Fig. l is a cross-section and diagrammatic view of a machine embodyingthe im-v proved process. Figs. 2 and 3 are similar views of modifiedforms of the coating means. Fig. 4: is a side view partly broken away ofa form of the coating carrier, and Fig. 5. is a similar view,of anotherform thereof with the carrier support removed. Fig. 6 is a cross sectionof another form of carrier.

An agitator 10 is provided in the tank of coating, below the drum, ofany desired construction. It is mounted at 16' on a vibrating frame 17and may constantly agitate the coating 15 between the underside ofthe'transmitting means 11 and bottom of the supply 9. Yielding meansbetween the ositive drive and the agitator, such as a rive cam 18 andspring-supported roll contacts 19 prevent any tendency of theconnections breaking if the coating mass at the bottom of the tankshould dry or solidify. In the .latter case the agitator loosens upthematerial and itself gradually. 20 is a feed roll assisting in carryingthe coated objects away on the conveyer 5. It must not be understoodhowever that these specific features alone may'carry out the process.The carrier 1 may be an endless belt, for example, or it may fit theabutment 6 closely. The incoming and outgoing conveyers 4 and 5 may beof any known form. The abutment 6 may be stationary and of variousshapes. The.

contacting means 8 may consist of rolls bearing on the interior surfaceof the carrier, by means of which the carrier may be brought intocontact with the supporting.

abutment in advance of the impression zone, or other means employed toshift the same. Thedammay be a stationary ocket instead of rotary, Thecoating may e supplied to roll 7, hung in bearings oscillating about theimpression zone, may swing to the position :-shown in dotted lines andcarry the coated,

object 3 into substantially the position shown.

here the outgoing conveyer is adjustable to and from the coating carrierthe. loose character of the coating surface is not essential, nor wherethe conveyer is inclined.

In fact several independent means of effecting the control of theuniform application of the coating to the object as the latter leavesthe carrier are contemplated; as, for example, (1) adjusting theforaminous surface upon the support; (2) inclining the outgoing conveyerto the line of travel of the object coated; adjusting the outgoingconveyer bodily to and from the carrier to vary the distance betweenthem; and (4) oscillatin the compression roll above the surface of thecoating carrier.

22 are means for adjusting conveyer 5. Instead of the feed-drum thesource of coating supply may be a pipe leading. the coating solution toand upon the carrier, or under the carrier, and a ainst it preferably inthe neighborhood of t 1e impression zone, so that the coating will becarried forward thereto. A feature of this inner or under supply to thecarrier serves to effect both the screening and the supply of thecoating to the carrier. By this latter plan ill-digested coating whichordinarily would be carried up on the outside method of supply anddeposited upon the surface of'the ob-.

ject coated, is prevented entirely by thisinner method of screeningsupply.

Other coating-supply means are shown in Figs. 2 and 3. In Fig. 2 thecoating is pumped through a tube 23 having lips 24,

between which the coating is caused to. flow (by'a pump, fountain, orthe like) to the carrier. and carrier support. In Fig. 3 the carrier orcarrier-support itself is made a conductor of the coating. The coatingflows out through the perforated shell 25 to the carrier, which may becomposed of elastic cellular material 26 thereon, and an outerforaminous sleeve 27. But the articular construction of the-carrier maye varied within wid'e limits. In anexterior supply system the carriermay.be imperforate and rigid pervious or elastic. In an interior supplysystem the carrier is preferably perforate, and rigid or elastic.

In any of the forms in Figs. 1, 2 and 3 the carrier ma assume the formcfa sleeve 1,f or a pluraity of sleeves, (1 and'28 Fig. 3)

kinds of articles by mach incs.

mountab e difficulties. cur mainly in connection 55 or a belt, (29 Figs;2 and 3) or a sleeve and belt (1 and 29 Figs. 2 and In the shell orsleeve form of carrier, the inner surface may be perforated metal 30(Fig. 4) or woven metal 31 (Fig. 5). The surrounding layer may beelastic fiber 32 or elastic composition 3-}, such as rubber. 'Goodresults are secured by cross-ribbingthe fabric 33; those in the form 33shown '(lincl-ined) giving better results than where he ribs are axiallyand diametrically disosed. Excellent results are also obtained y makinga. composition fabric 36 (Fig. (5) with a series of cells or pockets 34ilreely open on the inner side 36 and having a series of relativelysmaller perforations 35. As this style of carrier, Whether ofthe belt.or sleeve for i is :brought in contact with the carrier-support, agraduated supply of coating is pumped out of it, by regulatedcompression, sufficient to evenly coat the object. In the sleeve form Imay employ flanged collars 37 on either end of the sleeve against whichmay bear the rolls 8. The flanges prevent the lateral spread of thecoating and the collars serve to transmit the rolling adjustment of thesleeve.

, Other means of efl'ecting the adjustment of the carrier with respectto its support may be employed. One or more rolls for example may bearranged to bear on the inner periphery of the sleeve 1, or the axis ofthe sleeve may be made to shift in any way. In fact many known means maybe employed for pertorn'iing all these functions, allof which arecontemplated in the improved process. over the objects instead of theol'ijects being :fed to the apparatus. The coatingcarrier its support,the agitator, drum. convcym's, may all be driven from one source ofpowerby any suitable known means.

The coating carrier 1, in the particular form selected for illustration,shows an in her perforated shell, a cellular elastic covering over theshell, and a previous or foraminons exterior layer pretcrably of "metal.fl t is a very dillicult matter to coat some 'lilcs, iorinstance, havebeen covered for glazing purposes entirely bylhand comn'iercially, owingto the resence of these hitherto in ur- These diliicultics ocwith whitetile, the coating upon which, where a machine is .used, having atendency to form a. head or ridge upon one edge of the tile.

- Reference is made to applicunts ing applications Serial Nui'nbcrH0579, filed May 31, 1904, for tile coating machine; Serial Number12133071, filed S pt. 2, itlOl. for agitator; Serial Number 257370,filed Ape; 25, 1-905, for coating.

I claim as my invention '1. In a coating machine, the combination Theapparatus may be led.

copcnd-' of a coating carrier, means for causing a. flow of coating intoand through the carrier, means for conveying delached objects to becoated to the carrier, means for carrying the objects away from thecarrier, and means for removing the coated detached objects from l l l ll l l l I the carrier without any undue or uneven deposit of coatingthereon.

2. In a coating machine, the combination of a coating carricr, meansfor-continumisly supplying coating to the impression zone of thecarrier, and means for wi-tlidrawing a part of the coating into thecarrier as the object coated leaves it.

3. In a coating machine, the combination of a coating: carrier, meansfor continuously supplying coatii'lg' to the impression zone of thecarrier, and means for feedingthe objcct to be coated to and removingthe same from the carrier, and means for withdrawing the same from thecarrier, and means for withdrawing a portion of the coating into thecarrier as the coated object lea vcs it.

4. In a coating machine, the combination of a coating carrier, means forfeeding coatof a. moving coating carrier, a rotating); transfer feedingsurface in close proximity to thecarricr but out of contact therewith,and means for moving such transfer surface at a speed dili'crent fromthat of the movable coating carrier.

(3. in a coating machine, the combination of a coating carrier, meansfor feeding a. supply of coatingthrough the carrier to the impressionzoneiu excess of the normal sup ply, and means for withdrawing thcsupply into the carrier the im 'n'cssion zone.

7. In a coating machine, the combination of a coating carrier, in ansfor saturating said carrier, and means for witlulrawing a portion of thecoating H. lu a coating machine. the combination ot a supply vatexterior to the carrier, a coat carrier, means for continuouslysupplying coating from the vat to one side of the carrier, means forscreening the coatinp solution through the carrier, and vmeans forcoating the object upon the side of the car ricr opposite the supply ofcoating.

5 ln acoutinp; machine, the combination ot a supply vat exterior to thecarrier. a pen \ious coating carrier. means for continuously supplyingcoating from the vat to one side of said carrier, and means for coatingthe object upon the opposite side thereof.

10. In a coating machine, the combination a supply vat exterior to thecarrier, an

as the object coated leaves into lhc carrier beyond the nnprcssion zonc.

elastic pervious coating carrier, means for continuously supplyingcoating from the vat. to one side of the same, and means for coating theobject upon the opposite side of the carrier.

l1. In a coating machine, the combination of a movable coating carrier,means for supporting the carrier at the impression zone, means forcausing 'a compression of the carricr in advance of said zone, and meansfor adjustably setting the tension of the compression means.

12. In a coating machine, the combination, of a coating carrier, movablemeans for supporting the carrier at the impression zone,

means for supplying coating to the carrier, and means for simultaneouslysupplying coating tothe moving carrier-support.

13. In a coating machine, the combination of a coating carrier roll, asupporting roll therein, and means for simultaneously supplying coatingto the coating roll and to the supporting roll. a

14. In a coating machine, the combination o'fra moving coating carrier,a moving carthe compression means.

16. In a coating machine, the combination of a coating carrier, meansfor compressing the coated a'rticle upon the carrier, and means foroscillating the compression means 40 about the carrier.

17. In coating machine, the combination of a. carrier, means forconveying the coated article away from the carrier, and means forinclining the face of the conveyor on a line drawn across the face ofthe carrier.

18. Inja coating machine, the combination of a coating carrier,- mcansfor supplying coating to-the carrier, means for conveying the coatedarticle away from the carrier, and

means for adjustably varying the distance between. the carrier and theconveyor.

19. In a coating machine, the combination of a pervious elastic coatingcarrier, an inelastic support for said carrier, means for com 'n'essingthe carrier in advance of the application of coating, and means forwithdrawing the coating into the carricr'as the object coated leaves thecarrier.

:20. In a coating machine, the combination of'a pervious elasticcarrier, an inelastic jsupport therefor, and angularly adjustable meansfor compressing the carrier in advance of the application of coating.

.Ql. In a coating machine, the combination of-a carrier, a supplementarypervious carrier means for moving a supplementary pervious carrier overthe first named carrier,

and means for separating said carriers beimpression zone.

24. In a coating machine, the combination of a pervious coating carrier,a carrier sup port therefor, said pervious carrier contacting only apart of the carrier support and means for exerting pressure on thecarrier in advance of the impression zone.

25. In a coating machine, the combination of a carrier support, anelastic coating car-- rier having pockets or cells therein, means forsegregating the cells, and a pervious outer covering for the same.

26. In a coating machine, the combination of a coating carrier, meansfor supplying coating to the carrier, means for delivering the coatedobject and means for tilting the coated object as it passes otf thecarrier upon the delivery means. 7

27. In a coating machine, the combination of a coating carrier, meansfor supplying coating thereto, and carrying-01f means constructed andarranged to tilt the coated object as it leaves tlie carrier.

28. The combination of a coating carrier, means for feeding coatingalongside the carrier and means for arresting a portion of the coatingadjacent to the carrier.

29. The combination of a coating carrier,

means for continuously feeding coating alongside the carrier in excessof the amount required for use and rotary means for arresting a portionof the coating adjacent to the carrier.

I 30. In a coating machine, the combination of a coating device, meansfor supplying coating material to the device, means for conveyingdetached objects to be coated to the device, means for carrying theobjects away from the device and means for preventing the de )osition ofan excess of coating upon the OlJjCCtS.

31. In a coating machine, the combination of a coating device, means forsupplying coatinginaterial to the device, means for conveying detachedobjects to be coated to the device, means for carrying the objects awayfrom the device and means acting at substantially the moment of removalof the.

objects from the coating device for preventing deposition of an excessamount of coating material.

32. In a coating machine the combinatlon of a coating device. means t'orsupplying coating to the device in excess ot the ai-nonnt required toruse and means for withdrawing excess of coating as the object. coatedleaves the impression zone.

33. In a coating machine, the combination of a coating carrier, means'l'orsupplying coating to the carrier in excess of the amount requiredfor deposition and means for with drawing excess coating into thecarrier as the coated object leaves the impression zone.

34. In a coating machine the combination of a coating device, means forsupplying liquid coating material thereto, means for conveying objectsto be coated past the device and means for inclining the objects totheir normal line of travel as they leave the coating device.

35. In a. coating machine the combination of a coating device, means forsupplying coating to the device. menus 'l'or conveying coated articles away from the levice and means for varying the distance )etwccn thedevice and the coi'iveving means. I

" 36. A coating device 'l'or applying liquid coating containing solidmatter in suspension, comprising means for screening the coatingmaterial prior to its deposition on. ob ects to be coated.

'31. A coating carrier constructed and ar ranged to screen coatingmaterial and thereafter apply it to ceramic obj ecls.

38. A. coating carrier comprising a pluraL ity of screens constructedand arranged to successively screen coating materihl passing through thecarrier.

39. The combination of a coating device, a coating receptacle, a coatingconveyor continuously removing coating nniterial from the receptacle andmeans for maintaining an auxiliary mass of coating material supplied bythe conveyor for immediate use by the coating device.

40. The combination of a pervious shell, a rotary carrier thereforWithin the shell and means for varying the angular position of theshell.

41. The combination of a rotary spool, a pervious cylinder supportedthereby and means for changing the eccentric relation oi .the shell tothe spool.

42. In a coating machine the cmnhinatiou of a core, a coating shellloose thereon a pressure roll. and adjustable means independent of thepressure roll engaging said shell to serve in maintaining it in givenrelationship .to the core.

43. -ln a coating machine, the (fOll'lllllltll'lUll of a core, a coatingshell loose thereon, a

pressure roll and adjustable means independcut ol' the pressure rollengaging the exterior of said shell to serve in maintaining it in givenrelationship to the core.

ll. In a coating machine, the combination of a rotary core, a coatingshell loose thereon. and pressure means engaging the shell near the endsthereof to serve in maintaining a given relationship of the shell to thecore.

45. [n a coating machine, the combination of a rotary core, a coatingshell loose thereon, and means engaging the exterior of the shell nearthe ends thereof to maintain the shell in given relationship to thecore.

16. In a coating machine, the combination ol a core. a coating shellloose thereon, and means engaging non-coating portions of such shell tomaintain the shell in given relationship to the core.

l7. in a coating machine, the combination of a rotary core, a coatingshell loose thereon. a pressure roll aml adjustable means independent olthe pressure roll :lor maintaining a given relationship between the coreand the shell.

ln. In a coating machine, the combination f a core, a coating shellloose thereon, and rollers engaging non-coating portions of the ,shellto maintain the shell in given relationship to the core.

1! ln a coating maclnnc, the comblnatlon .ot a core. a coating shcllloose thereon, and

rollers engaging the exterior of the shell near its ends to maintain theshell in given relationship to the. cove.

50. In a coating machine, the combination of a core, a coating shellloose thereon, rollers engnging the exterior of the shell near its endsto maintain the shell in given relationship to the core. and means foradjusting said rollers.

Fit. In a coating machine, the combination of a core, a coating shellloose thereon, a pivoted lever. means carried by said lever for engagingthe shell to maintain it in given relationship to the core, and meansforangularlp adjusting the lever.

52. The combination of a core, a coating shell loose thereon and meansfor adjusting the angular position of the shell in relation to the core.

5 The combination of a core, a coating slltll loose thereon and meansexterior of the shell for adjusting the angular position oi the shell inrelation to the core.

l-ltllhllltltlli llltNS'l (ltlldtb'llll'l'll. Wit nesscs HAM l l rr'roN,J12: Emma .lt. Sun-Lav.

